diskimage-builder/elements/yum/README.rst
Gregory Haynes c4bbb6f3bc Create docs site containing element READMEs
We currently do not have the ability to create a docs site which
outlines all the elements.

Change-Id: I77ccf61e0c4b1509b3e7ce9b8f15ea5ccfd50d9b
2015-02-10 11:45:35 -08:00

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===
yum
===
Provide yum specific image building glue.
RHEL/Fedora/CentOS and other yum based distributions need specific yum
customizations.
Customizations include caching of downloaded yum packages outside of the build
chroot so that they can be reused by subsequent image builds. The cache
increases image building speed when building multiple images, especially on
slow connections. This is more effective than using an HTTP proxy as a yum
cache since the same rpm from different mirrors is often requested.
A custom yum repository configuration can also be applied by defining
`DIB_YUM_REPO_CONF` to the path to a repo configuration file. The file will
be copied to /etc/yum.repos.d/dib-yum-repo-conf.repo during the image build,
and then removed at the end of the build.